Kat Hillard is a fictional character from the popular animated television series Teenage Mutant Ninja Turtles. She is known for her intelligence, resourcefulness, and strong personality. Kat is often depicted as a skilled fighter and a loyal ally to the Teenage Mutant Ninja Turtles, assisting them in their battles against various villains. In the series, Kat has a close relationship with the turtles, particularly with Leonardo, who shares a strong bond with her. Her character adds depth to the storyline, showcasing themes of friendship, bravery, and teamwork as they work together to protect their city from evil forces.